After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

The remains of this rugged homestead ranch offer a brief glimpse into a bygone era.

This old selenite mine is dotted with tiny crystals that make it shimmer like it's covered in glitter.

Once a year, at exactly 11:11 a.m., this monument comes to life.

The biggest solar telescope in the world helps reveal the secrets of our sun.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

The cinder cone volcano with a less than complimentary name.

A secret fresh water spring for animals and humans alike hidden along the most famous road in the United States.

A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

This rustic cabin, outfitted with gun slits, was once home to John D. Tewksbury, patriarch of the bloodiest family feud in American history.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

America's only nuclear missile silo open to the public.

This historic national park is covered in the stunning ruins of red rock pueblos.

The Magical World of George Phar Legler.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

An homage to everyone's favorite prehistoric cartoon family.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

Eons ago, a rushing lava river formed this pristine passage through solid rock.